JPH0621216U - Insulation case and magnetic core - Google Patents
Insulation case and magnetic coreInfo
- Publication number
- JPH0621216U JPH0621216U JP1406392U JP1406392U JPH0621216U JP H0621216 U JPH0621216 U JP H0621216U JP 1406392 U JP1406392 U JP 1406392U JP 1406392 U JP1406392 U JP 1406392U JP H0621216 U JPH0621216 U JP H0621216U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic core
- insulating case
- outer cylinder
- cylinder
- inner cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Coils Or Transformers For Communication (AREA)
Abstract
(57)【要約】
【目的】 小型コアに用いて寸法精度が良く、作業性の
良い絶縁ケース及びそれを用いた磁心を提供する。
【構成】 外筒は内筒より高く形成され、磁性コア挿入
後前記外筒の前記内筒より突出した部分を折り曲げる。
(57) [Abstract] [Purpose] To provide an insulating case having good dimensional accuracy and good workability for a small core, and a magnetic core using the same. The outer cylinder is formed higher than the inner cylinder, and after the magnetic core is inserted, the portion of the outer cylinder protruding from the inner cylinder is bent.
Description
【０００１】[0001]
本考案は、回路部品として使用されるフェライト磁心、アモルファス磁性合金 巻磁心、超微結晶磁性合金巻磁心等の磁性コアを保護する絶縁ケース、及びこれ を使用した磁心に関するものである。 The present invention relates to an insulating case for protecting a magnetic core such as a ferrite core used as a circuit component, an amorphous magnetic alloy winding core, and an ultrafine crystal magnetic alloy winding core, and a magnetic core using the insulating case.
【０００２】[0002]
従来から、回路部品として使用される磁性コアは、一部のＮｉ―Ｚｎフェライ ト磁心を除き、活電部との短絡、酸化などの汚染、外力による破損から保護絶縁 のためにコーティング又はケース封入等の保護対策が行われている。 一般に大型、中型コア（内径６ｍｍ程度まで）では、コーティング又はケース 封入共に比較的容易に行われている。しかし、小型コアでは、主に比抵抗の高い Ｎｉ―Ｚｎフェライト磁心を用いていたため、コーティング又はケース封入共に 無しで使用されていた。 一方近年普及してきたアモルファス磁性合金又は超微結晶磁性合金等金属磁性 材料ではコアが脆弱であり、鋼材の比抵抗が低い等の理由により、使用に際して はコーティング又はケース封入による保護、絶縁処理が必要となっている。 このフェライト、金属磁性材料を用いた小型コアでは、保護、絶縁処理が必要 な場合主にコーティングにより保護、絶縁されていた。これは、小型コアをケー ス封入する場合、大量処理が困難で、作業性が悪く、コスト高となるからである 。 Conventionally, magnetic cores used as circuit components have a coating or case to protect from short circuit with live parts, contamination such as oxidation, and damage due to external force, except for some Ni-Zn ferrite cores. Etc. are being protected. In general, for large and medium-sized cores (up to about 6 mm in inner diameter), coating and case encapsulation are relatively easy. However, since the Ni-Zn ferrite core having a high specific resistance was mainly used for the small core, it was used without coating or encapsulation. On the other hand, metal magnetic materials such as amorphous magnetic alloys and ultra-fine crystalline magnetic alloys, which have become widespread in recent years, require a protective or insulating treatment such as coating or case encapsulation before use because the core is fragile and the specific resistance of steel materials is low. Has become. This small core made of ferrite and magnetic metal material was mainly protected and insulated by coating when protection and insulation treatment were required. This is because when a small core is sealed in a case, it is difficult to process a large amount, the workability is poor, and the cost is high.
【０００３】[0003]
従来の小型コアをコーティングする場合、主にエポキシ樹脂コーティングが行 われていた。このエポキシ樹脂コーティングでは、大量に処理することが可能と なるが、小型コアでは、内径が小さくなり過ぎるとか、寸法精度が悪いという問 題点があった。特にアモルファス磁性合金、超微結晶磁性合金の巻磁心では、リ ボン状に形成された合金を巻いて構成されるため、リボン層間に空気を含んでい る。そのため、コーティング表面に気泡、ピンホールが発生し易く、歩留り低下 を招いていた。またケース封入であれば、上記の歩留り低下の問題を解消できる が、小型コアでは、蓋部材が小さな部品となるため、取り扱い及び取り付けが困 難となり、作業性が悪く、コスト上昇につながる等実用的でなかった。 本考案は、上記の事を鑑みて、小型コアにおいて、寸法精度が良く、作業性の 良い絶縁ケース及び磁心を提供することを目的とする。 When coating conventional small cores, epoxy resin coating was mainly used. Although this epoxy resin coating enables a large amount of treatment, there were problems that the small core had an excessively small inner diameter and poor dimensional accuracy. In particular, a wound magnetic core of an amorphous magnetic alloy or an ultrafine crystalline magnetic alloy is formed by winding a ribbon-shaped alloy, and thus contains air between ribbon layers. Therefore, air bubbles and pinholes are easily generated on the coating surface, resulting in a decrease in yield. In addition, if the case is enclosed, the above-mentioned problem of reduced yield can be solved, but with a small core, the lid member is a small part, so handling and mounting becomes difficult, workability is poor, and cost rises. It was not the target. In view of the above, it is an object of the present invention to provide an insulating case and a magnetic core that have good dimensional accuracy and good workability in a small core.
【０００４】[0004]
本考案は、磁性コアを短絡、汚染、破損等から保護する絶縁ケースにおいて、 前記絶縁ケースは内筒と外筒とそれらを連結する底部とからなり、前記内筒、外 筒及び底部で囲まれる凹部にリング状磁性コアが挿入される絶縁ケースであり、 前記外筒は前記内筒より高く形成され、磁性コア挿入後前記外筒の前記内筒より 突出する部分を折り曲げて蓋とするものである。 また本考案は、円筒と、該円筒より高く形成された外筒と、それらを連結する 底部とからなる絶縁ケースと、アモルファス磁性合金又は超微結晶軟磁性合金か らなる巻磁心とからなり、前記外筒の前記内筒より突出する部分が、前記巻磁心 が挿入された後、熱及び圧力により折り曲げられて蓋とされている磁心である。 本考案では、絶縁ケースが１部品からなり、従来の絶縁ケースと異なり、別途 成形された蓋を用いないため、取り扱い及び作業性が良い。 The present invention relates to an insulating case for protecting a magnetic core from short circuit, contamination, damage, etc., wherein the insulating case includes an inner cylinder, an outer cylinder and a bottom portion connecting them, and is surrounded by the inner cylinder, the outer cylinder and the bottom portion. It is an insulating case in which a ring-shaped magnetic core is inserted in the recess, the outer cylinder is formed higher than the inner cylinder, and after inserting the magnetic core, the portion of the outer cylinder protruding from the inner cylinder is bent to form a lid. is there. Further, the present invention comprises a cylinder, an outer case formed higher than the cylinder, an insulating case composed of a bottom portion connecting the cylinder, and a wound magnetic core made of an amorphous magnetic alloy or an ultrafine crystalline soft magnetic alloy. A portion of the outer cylinder projecting from the inner cylinder is a magnetic core that is inserted into the wound magnetic core and then bent by heat and pressure to form a lid. In the present invention, the insulating case is composed of one part, and unlike the conventional insulating case, a separately molded lid is not used, so that the handling and workability are good.
【０００５】 また本考案では、熱可塑性樹脂からなる絶縁ケースを用い、ケース側壁を予め 封入するコアよりも高く成形し、そのケース側壁を熱及び圧力を加えて折り曲げ 整形して蓋とすることにより、容易に磁心のケース封入が可能である。この本考 案に用いる熱可塑性樹脂としては、ＰＢＴ、ＰＰＯ、ＰＰ、ナイロン等が挙げら れるが、本考案はこれらの例に限定されるものではない。又、ケース側壁を整形 する整形具としては、市販の熱かしめ具、先端部にすり鉢状の窪みを形成し窪み 部分にテフロン加工を施した半田ごて等が挙げられる。Further, in the present invention, by using an insulating case made of a thermoplastic resin, the case side wall is formed higher than the core to be enclosed in advance, and the case side wall is bent and shaped by applying heat and pressure to form a lid. The magnetic core case can be easily enclosed. Examples of the thermoplastic resin used in the present invention include PBT, PPO, PP, nylon and the like, but the present invention is not limited to these examples. Examples of the shaping tool for shaping the side wall of the case include a commercially available heat staking tool, and a soldering iron having a mortar-shaped depression at the tip and a Teflon process on the depression.
【０００６】[0006]
【実施例】 本考案に係る一実施例の絶縁ケースの断面図を図１に示す。この実施例は、Ｐ ＢＴ樹脂（フィラー無し）で成型した絶縁ケースであり、内筒１と外筒２とそれ らを連結する底部３とから構成され、外筒２が内筒１よりも高く形成されている 。この実施例の絶縁ケースに磁心を封入した断面図を図２に示す。図２は、アモ ルファス磁性合金の巻磁心４を絶縁ケースの内筒１と外筒２と底部３とから囲ま れる凹部に挿入し、外筒２の突出する部分２ａを熱及び圧力により折り曲げて、 蓋を構成したものである。この蓋を構成する様子を図３、図４に示す。まず、図 ３に示すように磁心４を絶縁ケースに挿入する。次いで、上方より整形具５を降 下させる。この整形具５は、円すいの先端を切り取ったようなテーパー状の窪み ６を有している。この整形具５を約１６０℃に加熱して、図４に示すように絶縁 ケースに押し当てる。それにより、外筒２の突出した部分２ａが折り曲げられて 蓋となる。この窪み６の角度θを例えば４５度程度から順次１８０度に近いもの に替えながら、段階的に成型を行っても良い。[Embodiment] FIG. 1 is a sectional view of an insulating case according to an embodiment of the present invention. This embodiment is an insulating case molded of PBT resin (without filler), and is composed of an inner cylinder 1, an outer cylinder 2 and a bottom portion 3 connecting them, and the outer cylinder 2 is higher than the inner cylinder 1. Has been formed. FIG. 2 shows a sectional view in which the magnetic core is enclosed in the insulating case of this embodiment. In FIG. 2, a winding core 4 of Amorphus magnetic alloy is inserted into a recess surrounded by an inner case 1, an outer case 2 and a bottom 3 of an insulating case, and a protruding portion 2a of the outer case 2 is bent by heat and pressure. , Which constitutes the lid. The manner in which this lid is constructed is shown in FIGS. First, as shown in FIG. 3, the magnetic core 4 is inserted into the insulating case. Next, the shaping tool 5 is lowered from above. This orthopedic tool 5 has a tapered recess 6 which is formed by cutting the tip of a cone. The shaping tool 5 is heated to about 160 ° C. and pressed against the insulating case as shown in FIG. Thereby, the protruding portion 2a of the outer cylinder 2 is bent to form a lid. The angle θ of the depression 6 may be gradually changed from, for example, about 45 degrees to 180 degrees, and the molding may be performed stepwise.
【０００７】[0007]
本考案によれば、一体物の絶縁ケースを用い、この絶縁ケースに磁心を挿入し 、整形具にてその絶縁ケースを整形し、蓋をして磁心のケース封入が可能であり 、作業性が良く、寸法精度も良い。特に小型コアに有効であり、更にアモルファ ス磁性合金又は超微結晶磁性合金の巻磁心として有効である。 According to the present invention, it is possible to use a monolithic insulating case, insert the magnetic core into the insulating case, shape the insulating case with a shaping tool, and cover the magnetic core with a lid, which improves workability. Good and dimensional accuracy is also good. It is particularly effective for small cores, and is also effective as a wound magnetic core of amorphous magnetic alloy or ultrafine crystalline magnetic alloy.
【図１】本考案に係る一実施例の絶縁ケースの断面図で
ある。FIG. 1 is a cross-sectional view of an insulating case according to an embodiment of the present invention.
【図２】本考案に係る一実施例の磁心の断面図である。FIG. 2 is a sectional view of a magnetic core according to an embodiment of the present invention.
【図３】本考案に係る一実施例の製造工程の断面図であ
る。FIG. 3 is a sectional view of a manufacturing process of an embodiment according to the present invention.
【図４】本考案に係る一実施例の製造工程の断面図であ
る。FIG. 4 is a sectional view of a manufacturing process of an embodiment according to the present invention.
１ 内筒 ２ 外筒 ３ 底部 ４ 磁心 ５ 整形具 1 inner cylinder 2 outer cylinder 3 bottom 4 magnetic core 5 shaping tool
Claims (2)
する絶縁ケースにおいて、前記絶縁ケースは円筒と外筒
とそれらを連結する底部とからなり、前記内筒、外筒及
び底部で囲まれる凹部にリング状磁性コアが挿入される
絶縁ケースであり、前記外筒は前記内筒より高く形成さ
れ、磁性コア挿入後前記外筒より突出する部分を折り曲
げて蓋となるように構成されていることを特徴とする絶
縁ケース。1. An insulating case for protecting a magnetic core from short circuit, contamination, damage, etc., wherein the insulating case is composed of a cylinder, an outer cylinder and a bottom connecting them, and is surrounded by the inner cylinder, the outer cylinder and the bottom. It is an insulating case in which a ring-shaped magnetic core is inserted in the recess, the outer cylinder is formed higher than the inner cylinder, and the portion protruding from the outer cylinder after the magnetic core is inserted is bent to form a lid. Insulation case characterized by
と、それらを連結する底部とからなる絶縁ケースと、ア
モルファス磁性合金又は超微結晶軟磁性合金からなる巻
磁心とからなり、前記外筒の前記内筒より突出する部分
が、前記巻磁心が挿入された後、熱及び圧力により折り
曲げられて蓋とされていることを特徴とする磁心。2. An insulating case including an inner cylinder, an outer cylinder formed higher than the inner cylinder, and a bottom portion connecting them, and a wound magnetic core made of an amorphous magnetic alloy or an ultrafine crystalline soft magnetic alloy. A magnetic core, wherein a portion of the outer cylinder protruding from the inner cylinder is a lid that is bent by heat and pressure after the wound magnetic core is inserted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1406392U JPH0621216U (en) | 1992-02-13 | 1992-02-13 | Insulation case and magnetic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1406392U JPH0621216U (en) | 1992-02-13 | 1992-02-13 | Insulation case and magnetic core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0621216U true JPH0621216U (en) | 1994-03-18 |
Family
ID=11850637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1406392U Pending JPH0621216U (en) | 1992-02-13 | 1992-02-13 | Insulation case and magnetic core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0621216U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001319814A (en) * | 2000-05-10 | 2001-11-16 | Toshiba Corp | Surface mount noise suppressing element and its manufacturing method |
| JP2007185098A (en) * | 2007-03-22 | 2007-07-19 | Toshiba Corp | Switching power supply |
| WO2009054129A1 (en) * | 2007-10-24 | 2009-04-30 | Kabushiki Kaisha Toshiba | Inductance element, method for manufacturing inductance element, and switching power supply using inductance element |
| JP2011228483A (en) * | 2010-04-20 | 2011-11-10 | Denso Corp | Reactor |
| JPWO2018211884A1 (en) * | 2017-05-18 | 2020-02-27 | 株式会社村田製作所 | Ferrite core fixing structure and method of manufacturing the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4814848U (en) * | 1971-06-26 | 1973-02-19 | ||
| JPS5816357A (en) * | 1981-07-21 | 1983-01-31 | Hitachi Ltd | Data storage device of computer |
-
1992
- 1992-02-13 JP JP1406392U patent/JPH0621216U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4814848U (en) * | 1971-06-26 | 1973-02-19 | ||
| JPS5816357A (en) * | 1981-07-21 | 1983-01-31 | Hitachi Ltd | Data storage device of computer |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001319814A (en) * | 2000-05-10 | 2001-11-16 | Toshiba Corp | Surface mount noise suppressing element and its manufacturing method |
| JP4557369B2 (en) * | 2000-05-10 | 2010-10-06 | 株式会社東芝 | Surface mount type noise suppression element and method of manufacturing the same |
| JP2007185098A (en) * | 2007-03-22 | 2007-07-19 | Toshiba Corp | Switching power supply |
| JP4585535B2 (en) * | 2007-03-22 | 2010-11-24 | 株式会社東芝 | Switching power supply |
| WO2009054129A1 (en) * | 2007-10-24 | 2009-04-30 | Kabushiki Kaisha Toshiba | Inductance element, method for manufacturing inductance element, and switching power supply using inductance element |
| JP2013225689A (en) * | 2007-10-24 | 2013-10-31 | Toshiba Corp | Inductance element and switching power supply using the same |
| JP5342447B2 (en) * | 2007-10-24 | 2013-11-13 | 株式会社東芝 | Inductance element, manufacturing method thereof, and switching power supply using the same |
| JP2011228483A (en) * | 2010-04-20 | 2011-11-10 | Denso Corp | Reactor |
| JPWO2018211884A1 (en) * | 2017-05-18 | 2020-02-27 | 株式会社村田製作所 | Ferrite core fixing structure and method of manufacturing the same |
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